1 Support other brands compatible with High-Speed flash synchronization and TTL flash2 Support TTL exposure compensation and M-speed manual flash3 Support three flash groups to output different modes and powers of flash4 Support front curtain synchronization, rear-curtain synchronization, low-speed synchronization, and high-speed synchronization5 Support high-speed synchronous studio strobe and outdoor flash6 Support a transmitter controlling multiple receivers7 Support flash AF assist lamp8 Support setting the flash output on the camera, for example, under E-TTL mode, the EV level can be adjust from -3 to +3; and under M mode, the output can be set from 1/1 to 1/128 and select from 23 levels9 Support setting the shutter synchronous speed of flash through the transmitter, such as front-curtain synchronization, rear-curtain synchronization, low-speed synchronization, and high-speed synchronization10 Support setting the zoom model of flash on the camera11 Support setting the exposure bracketing on the camera12 Support setting the communication channel and effective group's flashes of MK-GT600 transmitter on the camera